openvswitch: Set internal device max mtu to ETH_MAX_MTU.

Jarno Rajahalme · davem330 · commit 425df17ce3a2 · 2017-02-15T12:40:27.000-05:00
Commit 9157208 ("net: use core MTU range checking in core net infra") changed the openvswitch internal device to use the core net infra for controlling the MTU range, but failed to actually set the max_mtu as described in the commit message, which now defaults to ETH_DATA_LEN. This patch fixes this by setting max_mtu to ETH_MAX_MTU after ether_setup() call. Fixes: 9157208 ("net: use core MTU range checking in core net infra") Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
@@ -149,6 +149,8 @@ static void do_setup(struct net_device *netdev)
 {
 	ether_setup(netdev);
 
+	netdev->max_mtu = ETH_MAX_MTU;
+
 	netdev->netdev_ops = &internal_dev_netdev_ops;
 
 	netdev->priv_flags &= ~IFF_TX_SKB_SHARING;

Original file line number	Diff line number	Diff line change
`@@ -149,6 +149,8 @@ static void do_setup(struct net_device *netdev)`
`149`	`149`	`{`
`150`	`150`	`ether_setup(netdev);`
`151`	`151`
	`152`	`+ netdev->max_mtu = ETH_MAX_MTU;`
	`153`	`+`
`152`	`154`	`netdev->netdev_ops = &internal_dev_netdev_ops;`
`153`	`155`
`154`	`156`	`netdev->priv_flags &= ~IFF_TX_SKB_SHARING;`